I think syncing is done with a Firefox account (Firefox Sync) and i can't find implementation details, but I did find: "Firefox Accounts uses your password to

I think syncing is done with a Firefox account (Firefox Sync) and i can't find implementation details, but I did find: "Firefox Accounts uses your password to encrypt your data (such as bookmarks and passwords) for extra security. When you forget your password and have to reset it, this data could be erased. To prevent this from happening, generate your recovery key before having to reset your password."[1] So it appears they may be encrypting data locally and syncing encrypted data without having keys. I think you are right though, there are more website saving features available through pocket other than recommendations and I'm not sure how any of that works. [1] https://support.mozilla.org/en-US/kb/reset-your-firefox-account-password-recovery-keys https://support.mozilla.org/en-US/kb/reset-your-firefox-acco...